Mechmeera wrote:The Atlantic Ocean, the second youngest of Earth's five oceans, originated 130 million years ago when the Americas separated from Africa and, as Earth's plates continue to move, has been expanding ever since.

a. originated 130 million years ago when the Americas separated from Africa and, as Earth's plates continue to move, has been expanding

b. originated 130 million years ago with the Americas separating from Africa and, as Earth's plates continue to move, expanding

c. had originated 130 million years ago as the Americas separated from Africa and, with Earth's plates continuing their motion, is expanding

d. had originated 130 million years ago because the Americas separated from Africa and, while Earth's plates continue to move, expanding

e. originated 130 million years ago with the Americas separating from Africa and, as Earth's plates continue their motion, was expanding

how come originated and has been expanding parallel.

Mechmeera wrote:Hello Mitch,

I feel that since because "ever since" implies an action that started in the past and might still be happening,
using HAS BEEN EXPANDING again will make the sentence redundant.